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import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
public class SetCharacterEncodingFilter implements Filter {
protected String encoding = null;
protected FilterConfig filterConfig = null;
protected boolean ignore = true;
// ÉèÖÃÉêÇë¶ÔÏóµÄֵΪ¿Õ£¬ÓÐÀûÓÚÄÚ´æ×ÊÔ´µÄ¿ìËÙÊÍ·Å
public void destroy() {
this.encoding = null;
this.filterConfig = null;
}
// filterµÄÖ÷Ìå²Ù×÷
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
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if (!ignore || request.getCharacterEncoding() == null) {
// µÃµ½ÅäÖÃÎļþÖеıàÂëÀàÐÍ
String encoding = setEncoding(request);
if (encoding != null) {
request.setCharacterEncoding(encoding);
}
}
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